不必敲门—进来就是了。

You don't have to knock—just walk in.

《牛津词典》

这样，你就不必再复习所有的材料了。

In this way, you don`t have to review all the material again.

youdao

好啦，看在老天爷的份上，你不必道歉了。

Well, for Heaven's sake, you don't need to apologize.

《柯林斯英汉双解大词典》

Now we don't have to be overly concerned here with what I take to be Chudleigh's generous oversight of Milton's generally sexist bias.

这一点我们不必多虑,弥尔顿总体上有性别歧视，恰德莱大方的忽视了这一点。

耶鲁公开课 - 弥尔顿课程节选

If we're actually there, we no longer have to worry about the way it organizes everything around it into a kind of rigorous unfolding pattern.

如果我们身临其境，我们就不必担心,它是通过何种方式将其周围事物,组织为严密的展开形式了。

耶鲁公开课 - 文学理论导论课程节选

So just to motivate this a little bit, so there's two reasons why this game is interesting.

所以各位不必担心学不会了,这个博弈之所以有趣有两个原因

耶鲁公开课 - 博弈论课程节选